dillon1000/react

Trigger a proper no-op warning for async state changes on server (#7127)

This commit fixes #5473: ReactDOMServer.renderToString: presence of onClick
handler causes errors on async update

This commit performs the following changes:

- Adds a getUpdateQueue method to ReactServerRenderingTransaction,
  ReactReconcileTransaction, ReactNativeReconcileTransaction and
  ReactTestReconcileTransaction
- Make the ReactCompositeComponent call this getUpdateQueue instead of using
  ReactUpdateQueue that was unwanted at certain moments on server
- On ReactServerRenderingTransaction, dispatch ReactUpdateQueue's methods
  while rendering and warning methods afterwards. This is done through the new
  ReactServerUpdateQueue class
- Added a series of tests that mimics the case presented in #5473 with setState,
  forceUpdate and replaceState
- Add flow typechecking on concerned files